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TROUBLESHOOTING
Problem
The engine seems weak.
Cause
The engine overheats.
Battery not charging.
• Clogged air filter.
• Fouled spark plugs.
• Carburetor incorrectly adjusted.
• Clogged air intake or cooling fins.
• Engine overloaded.
• Poor ventilation around engine.
• Defective engine speed regulator.
• Soot in the combustion chamber.
• Too little or no oil in the engine.
• Fouled spark plug.
Poor contact with battery terminal cable
connectors.
The machine moves slowly, unevenly, or not at all.
Mower deck not engaging.
• Parking brake on.
• Hydraulic pump bypass linkage engaged.
• Drive belt for the transmission gears slack or has
come off.
• Defective hydraulic system.
• Air in hydraulic system.
• Drive belt for the mower deck has come loose.
• Contact for the electromagnetic coupling has
loosened.
• Blade switch is faulty or has come loose, from the
cable contact.
• Fuse has blown.
Uneven mowing results. • Different air pressure in the tires on left and right
sides.
• Bent blades.
• Suspension for the mower deck is uneven.
• Blades are dull.
• Driving speed too high.
• Grass is too long.
• Grass collected under the mower deck.
The machine vibrates. • Blades are loose.
• Blades are incorrectly balanced.
• Engine is loose.
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